Issued Patents All Time
Showing 51–75 of 79 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4914211 | Pigment compositions | Max Jost, Alain C. Rochat | 1990-04-03 |
| 4810802 | Process for the preparation of brominated pyrrolo-[3,4-c]-pyrroles and mixtures thereof | Olof Wallquist, Johannes Pfenninger, Alain C. Rochat | 1989-03-07 |
| 4791204 | 1,4-diketopyrrolo[3,4-c]pyrrole pigments | Max Jost, Alain C. Rochat | 1988-12-13 |
| 4782153 | Pyridoquinolone derivatives | Alain C. Rochat, Edward E. Jaffe | 1988-11-01 |
| 4778899 | Process for the preparation of pyrrolo (3,4-c) pyrroles | Johannes Pfenninger, Alain C. Rochat, Olof Wallquist | 1988-10-18 |
| 4760151 | Dithioketo pyrrolopyrroles | Alain C. Rochat, Remy Jeanneret, Jin Mizuguchi | 1988-07-26 |
| 4730014 | Use of pyridoquinolone derivatives as pigments | Alain C. Rochat, Edward E. Jaffe | 1988-03-08 |
| 4720305 | Mixtures of pigments | Johannes Pfenninger, Alain C. Rochat, Fridolin Babler | 1988-01-19 |
| 4681971 | Phenyl substituted aminodicarboxylate esters | Johannes Pfenninger, Alain C. Rochat | 1987-07-21 |
| 4666455 | Compositions pigmented with N-substituted 1,4-diketopyrrolo-[3,4-c]-pyrroles | Max Jost, Alain C. Rochat | 1987-05-19 |
| 4659775 | Process for the preparation of pyrrolo[3,4-c]pyrroles, and novel pyrrolo[3,4-c]pyrroles | Johannes Pfenninger, Alain C. Rochat, Olof Wallquist | 1987-04-21 |
| 4632893 | Electrophotographic recording material containing selected dithioke topyrrolopyrroles | Alain C. Rochat, Remy Jeanneret, Jin Mizuguchi | 1986-12-30 |
| 4613669 | Preparation of 1,4-diketopyrrolo-[3,4-c]pyrroles | Luigi Cassar, Alain C. Rochat | 1986-09-23 |
| 4585878 | N-substituted 1,4-diketopyrrolo-[3,4-c]-pyrroles | Max Jost, Alain C. Rochat | 1986-04-29 |
| 4579949 | Preparation of pyrrolo[3,4-c]pyrroles | Alain C. Rochat, Luigi Cassar | 1986-04-01 |
| 4540791 | Production of .beta.-amino-.alpha.,.beta.-unsaturated carboxylic acid esters | Luigi Cassar, Alain C. Rochat | 1985-09-10 |
| 4496727 | Process for the manufacture of metal complexes of isoindoline azines | Paul Lienhard | 1985-01-29 |
| 4490542 | 1,4-Diketo-pyrrolo[3,4-c]pyrroles | Luigi Cassar | 1984-12-25 |
| 4474952 | Process for the preparation of metal complexes of isoindolinazines | — | 1984-10-02 |
| 4460768 | Nickel complex pigments of azines | Paul Lienhard, Andre Pugin | 1984-07-17 |
| 4415685 | Process for dyeing high-molecular organic material, and novel polycyclic pigments | Luigi Cassar | 1983-11-15 |
| 4414395 | Process for the manufacture of hydrazono-isoindolines | Paul Lienhard | 1983-11-08 |
| 4385174 | Isoindoline compounds and the manufacture and use thereof | Paul Lienhard | 1983-05-24 |
| 4367333 | Metal complexes of isoindolinazines, process for their preparation and use | — | 1983-01-04 |
| 4366312 | Metal complexes of isoindolinazines, process for their preparation and use | — | 1982-12-28 |